On Tuesday, December 8, 2009, the 9PM premiere telecast of Discovery Channel's DIRTY JOBS was the #1 primetime cable telecast among Persons 25-54 and 18-49, and Men 25-54 and 18-49 in delivery and ratings. Strengthened by DIRTY JOBS, Discovery was the #1 primetime cable network for Men 25-54 ratings and delivery.

GHOST LAB, in its first season on Discovery Channel and airing directly following DIRTY JOBS at 10PM, ranked in the top ten among Men 25-54 on primetime cable.